標準ライブラリヘッダ <shared_mutex>
提供: cppreference.com
このヘッダはスレッドサポートライブラリの一部です。
クラス | ||
(C++17) | 共有可能な相互排他機能を提供します (クラス) | |
(C++14) | タイムアウト付きのロックを実装する共有可能な相互排他機能を提供します (クラス) | |
(C++14) | ムーブ可能なミューテックスの共有所有権のラッパーを実装します (クラステンプレート) | |
関数 | ||
(C++14) | shared_lock に対する std::swap の特殊化 (関数テンプレート) |
[編集]概要
namespace std {class shared_mutex;class shared_timed_mutex;template<class Mutex>class shared_lock;template<class Mutex>void swap(shared_lock<Mutex>& x, shared_lock<Mutex>& y)noexcept;}
[編集]
namespace std {class shared_mutex {public: shared_mutex(); ~shared_mutex(); shared_mutex(const shared_mutex&)= delete; shared_mutex& operator=(const shared_mutex&)= delete; // exclusive ownershipvoid lock();// blockingbool try_lock();void unlock(); // shared ownershipvoid lock_shared();// blockingbool try_lock_shared();void unlock_shared(); using native_handle_type =/* implementation-defined */; native_handle_type native_handle();};}
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namespace std {class shared_timed_mutex {public: shared_timed_mutex(); ~shared_timed_mutex(); shared_timed_mutex(const shared_timed_mutex&)= delete; shared_timed_mutex& operator=(const shared_timed_mutex&)= delete; // exclusive ownershipvoid lock();// blockingbool try_lock();template<class Rep, class Period>bool try_lock_for(const chrono::duration<Rep, Period>& rel_time);template<class Clock, class Duration>bool try_lock_until(const chrono::time_point<Clock, Duration>& abs_time);void unlock(); // shared ownershipvoid lock_shared();// blockingbool try_lock_shared();template<class Rep, class Period>bool try_lock_shared_for(const chrono::duration<Rep, Period>& rel_time);template<class Clock, class Duration>bool try_lock_shared_until(const chrono::time_point<Clock, Duration>& abs_time);void unlock_shared();};}
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namespace std {template<class Mutex>class shared_lock {public:using mutex_type = Mutex; // construct/copy/destroy shared_lock()noexcept;explicit shared_lock(mutex_type& m);// blocking shared_lock(mutex_type& m, defer_lock_t)noexcept; shared_lock(mutex_type& m, try_to_lock_t); shared_lock(mutex_type& m, adopt_lock_t);template<class Clock, class Duration> shared_lock(mutex_type& m, const chrono::time_point<Clock, Duration>& abs_time);template<class Rep, class Period> shared_lock(mutex_type& m, const chrono::duration<Rep, Period>& rel_time); ~shared_lock(); shared_lock(const shared_lock&)= delete; shared_lock& operator=(const shared_lock&)= delete; shared_lock(shared_lock&& u)noexcept; shared_lock& operator=(shared_lock&& u)noexcept; // lockingvoid lock();// blockingbool try_lock();template<class Rep, class Period>bool try_lock_for(const chrono::duration<Rep, Period>& rel_time);template<class Clock, class Duration>bool try_lock_until(const chrono::time_point<Clock, Duration>& abs_time);void unlock(); // modifiersvoid swap(shared_lock& u)noexcept; mutex_type* release()noexcept; // observersbool owns_lock()constnoexcept;explicit operator bool()constnoexcept; mutex_type* mutex()constnoexcept; private: mutex_type* pm;// exposition onlybool owns;// exposition only}; template<class Mutex>void swap(shared_lock<Mutex>& x, shared_lock<Mutex>& y)noexcept;}